Valve.



R. ABELL.

VALVE.

APPLICATION FILED JAN-14, 1913.

Patented Mar. 23, 1915.

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THE NORRIS PETERS CO.. FHOTO-LITHO-, WASHINGTON. D. C,

ROLLIN ABELL, OF MILTON, MASSACHUSETTS.

VALVE.

Specification of Letters Patent.

Patented Mar. 23, 1915.

Application filed January 14, 1913. Serial No. 741,962.

Toallwhom it may concern Be it known that I, RoLLIN ABELL, a citizen ofthe United States, and resident of Milton, in the county of Norfolk andState ofMassachusetts, have invented certain new and useful Improvementsin Valves, of which the following is a specification.

This inventionrelates to valves, and one of its objects is to preventparticles of dirt from holding the valve away from its seat so as topermit leaking. The valve is of the puppet type and is 'capableofrotation, but it opens and closes by axial movement. A limited rotarymovement is imparted to the valve for the purpose of grinding suchparticles of dirt as may become lodged between itand the seat, and theopening movement is imparted in consequence of such rotary movement. Therotary movement which thus indirectly opens the valve first causes agrinding operation, and, when reversed to close the valve, causes agrinding operation (after the closing movement.

Another object of the invention is the provisionof fittings whereby thevalve and a fluid'pressure pipe may be quickly attached to a valvecasing so as to form a tight joint without an additional opening in thecasing for the pipe, thefittings being so madeas to utilize the sameopening in the valve casing forthepipe connection as for the valveconnection. r

Of the accompanying drawings which illustrate one form in which theinvention may be embodied: Figure 1 represents an elevation of the valveholder with the valve mounted therein, and means for imparting rotarymovement to the valve. Fig. 2 I'BPI'Q".

sents a section through the mechanism shown by Fig. 1, with the additionof a support for the valve holder and an annular fitting adapted tocooperate with the valve holder.

Fig. 3 represents a section in the plane indicated by line 33 of Fig.2.. V The same reference characters same parts wherever they occur.

The valve holder, indicated at 10, is formed with a chamber 11 the mouth12 of which indicate the The valve may be,

and stem are capable of rotary movement and of axial movement. A handleor lever stem and is compressed between the holder and the lever 16, sothat it is adapted to. nor mally hold the valveagainstits seat 12. It,

is obvious that rotary movement imparted to the valve stem by the lever16 will merely cause the valve to turn on its seat, so far as themechanism so far described is concerned; but in order to cause the valveto move away from its seat, the holder '10 is provided with a camsurface 18, and the valve is provided with a pin or other projection 19which is adapted to ride upon the cam surface and thus positivelyretract the valve from its seat. The holder is provided witha shoulder20 which is adapted to be engaged by the pin 19 when the valve isclosed, this shoulder serving as a stop for limiting the rotary movementof the valve. There is a considerable distance between the stop shoulder20 mines the extent of grinding movement which the valve memberhas onits seat be:

fore it is retracted therefrom. In this em-] and that point of the cam18 where the pin 19 first engages the cam, which space deter-" valvestem isformed with a frusto-conical portion 21, and the hole through thelever is lever. may-be forced tightly upon the portion 21.

The valve holder is designed to be used in conjunction with an annularmember 24 in order to facilitate the formation of a tight joint betweenthe valve chamber '11 and a pipe 25. The annular member 24 is here shownas having a nipple26 for the reception of thepiper An annular groove 27is formed in the member 24, and a port 28 forms communication betweenthe pipe and this groove. The annular memberis intended to be looselyfitted upon the valve holder,

and for this purpose the valve holder is provided with a cylindricportion 29. Ports 30 extending through the" wall of the valve holderform communication between the chamber 11 and the annular groove 27. Bymeans of the connection just described, a passageway is provided forconducting fluid from the pipe 25 into the chamber 11, and vice versa,regardless of the circumferential position which the annular member 2Aoccupies with relation to the holder 10.

The holder is provided with a seat or shoulder 31 for determining theaxial relation of the holder and annular member 24 so that the ports 30will register with the groove 27. The holder, as shown by Fig. 2, isinserted in a support 32 which may be a part of a valve casing. Theholder is externally threaded and the support is internally threaded toform the desired connection whereby the holder may be screwed into thesupport and thus confine the annular member 24 tightly between the seat31 and the confronting surface of the support. The holder 10 is providedwith angular faces 33 adapted to receive a wrench for tightening theholder in the support. Gaskets are indieated in Fig. 2 at 34, one ofthese gaskets being placed between the annular member 24 and the seat31, and the other being placed between the member 24 and the support 32.

The valve and its holder, together with the operating mechanism, areself-contained and are removable as a unit from the support 32. Screwingthe valveholder tightly into the support 32 tightens the joint of thepipe 25. WVhen the valve holder is sufficiently tightened, the actuatinglever 16 may be set at the desired angular position and the device isready for use.

I claim:

1. A device of the character described, comprising a rotary valve andseat therefor, means for limiting rotary movement in one direction ofsaid valve, said valve having a stem with a frusto-conical portion, anoperating member mounted upon said frustoconical portion, and means forcausing said operating member to coact frictionally with saidfrusto-conica-l portion, whereby said valve may be adjusted to thelimit'of its rotary'movement and said operating member adjustedrotatively with relation to said valve while said operating member andfrusto-conical portions are coactively engaged with each other.

2. The combination with a valve casing having an internally threadedopening, of an externally threaded plug adapted to be screwed into saidopening, said plug having a chamber with an opening at the inner end ofthe plug for communication with the interior of the casing, an annularmember adapted to fit around said plug outside the casing, said plughaving a smooth cylindric surface for engagement with said annularmember and a flange for confining the annular member against the casing,said annular member having an internal annular groove and a portcommunicating therewith, said plug having a port forming communicationbetween said chamber and groove, and a valve member cooperating withsaid plug to control communication between said chamher and the interiorof the valve casing.

3. A device of the character described comprising inner andouter'screw-threaded members one of which is adapted to be screwed intothe other, an annular member surrounding said inner member, said innermember having a flange for confining said annular member againsttheouter member, and a smooth cylindric surface for engaging the internalsurface of the annular member, said annular member having an internalannular groove and a conduit communicating therewith, said inner memberhaving a chamber and a port forming communication between the same andsaid groove, and a valve member carried by said inner member forcooperating therewith to close said chamber.

A. A device of the character described comprising a valve holder, avalve member, said holder having a seat for said valve member and aportion surrounding said valve member and seat, a spring for holding thevalve member against said seat, and means secured to said valve memberfor rotating the same, said valve member having a radial projection andsaid surrounding portion having a cam surface for cooperating with saidprojection to move the valve member bodily away from its seat inconsequence of rotary movement of the valve member.

5. A device of the character described comprising a casing having aninternally threaded mouth, a plugmember havng an external screw-threadfor cooperatively engaging the thread in said mouth, an annular membersurrounding said plug member out side said casing, said plug memberhaving a chamber for communication with the interior of said casing, anda valve for controlling such communication, said plug member having aseat for said valve, and means overlapping said annular member forforcing the latter against said casing, said plug member and annularmember having complemental close-fitting cylindric surfaces, one of saidmembers having an annular groove in its cylindric surface, said plugmember having a port forming communication between said chamber and saidgroove, and said annular member having a'port communicating with saidgroove.

6. A device of the character described, comprising a rotary valve andseat therefor,

means for limiting rotary movement in one tively with relation to saidvalve while fricdirection of said valve, said valve having a tionallycoacting with said stem. 10 stem, an operating member mounted upon Intestimony whereof. I have aflixed my said stem, and means for causingfrictional signature, in presence of two witnesses.

coaction between said stem and operating ROLLIN ABELL. member wherebysaid valve may be adjusted Witnesses:

to the limit of its rotary movement and said WALTER C. KNIGHT,

operating member may be adjusted rota- FRED H. LANGILLE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

